https://www.vetsurgeon.org/f/clinical-questions/15261/actinic-dermatitis--cat-pinnae Anyone have any experience of treating this with the topical agent imiquimod? I found this reference: Vet Comp Oncol. 2008 Mar;6(1):55-64. Use of imiquimod 5% cream (Aldara) in cats with multicentric squamous cell carcinoma in situ: 12 casesen-USTelligent Community 10https://www.vetsurgeon.org/thread/88475?ContentTypeID=1Wed, 15 May 2013 20:19:29 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:3c328bf8-ee10-4059-ab64-75e0bec177d2Andrew Kent<p>That paper looked at its use in multi centric SCC not the traditional localised SCC. It worked but they recurred or came up at another site so not curative. Surgery will still be the treatment of choice if you want to cure. <p> Andy</p><div style="clear:both;"></div>